523692089 has 4 divisors (see below), whose sum is σ = 554497524. Its totient is φ = 492886656.

The previous prime is 523692077. The next prime is 523692097. The reversal of 523692089 is 980296325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 210685225 + 313006864 = 14515^2 + 17692^2 .

It is a cyclic number.

It is not a de Polignac number, because 523692089 - 2⁴ = 523692073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (523692049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15402692 + ... + 15402725.

It is an arithmetic number, because the mean of its divisors is an integer number (138624381).

Almost surely, 2^523692089 is an apocalyptic number.

It is an amenable number.

523692089 is a deficient number, since it is larger than the sum of its proper divisors (30805435).

523692089 is a wasteful number, since it uses less digits than its factorization.

523692089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30805434.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 523692089 is about 22884.3197189691. The cubic root of 523692089 is about 806.0438544814.

The spelling of 523692089 in words is "five hundred twenty-three million, six hundred ninety-two thousand, eighty-nine".